Big Dog Motorcycles LogoBig Dog Motorcycles - 2008 Model Comparison Chart
BulldogCoyoteK-9K-9 EFIMastiffMastiff EFIPitbullPitbull EFIRidgebackWolf
Factory Warranty2 Years Manufacturer2 Years Manufacturer2 Years Manufacturer2 Years Manufacturer2 Years Manufacturer2 Years Manufacturer2 Years Manufacturer2 Years Manufacturer2 Years Manufacturer2 Years Manufacturer
Dry Weight - Front322 lbs (146 kg)261 lbs (118 kg)271 lbs (123 kg)271 lbs (123 kg)281 lbs (127 kg)281 lbs (127 kg)295 lbs (134 kg)295 lbs (134 kg)259 lbs (116 kg)305 lbs (138 kg)
Dry Weight - Rear446 lbs (202 kg)401 lbs (182 kg)430 lbs (195 kg)430 lbs (195 kg)427 lbs (194 kg)427 lbs (194 kg)396 lbs (179 kg)396 lbs (179 kg)421 lbs (191 kg)465 lbs (211 kg)
Dry Weight - Total768 lbs (348 kg)662 lbs (300 kg)701 lbs (318 kg)701 lbs (318 kg)708 lbs (321 kg)708 lbs (321 kg)691 lbs (313 kg)691 lbs (313 kg)680 lbs (308 kg)770 lbs (349 kg)
GVWR1208 lbs (548 kg)1012 lbs (459 kg)1130 lbs (512 kg)1130 lbs (512 kg)1130 lbs (512 kg)1130 lbs (512 kg)1085 lbs (492 kg)1085 lbs (492 kg)1085 lbs (492 kg)1195 lbs (542 kg)
GAWR - Front424 lbs (192 kg)345 lbs (156 kg)390 lbs (177 kg)390 lbs (177 kg)390 lbs (177 kg)390 lbs (177 kg)360 lbs (163 kg)360 lbs (163 kg)390 lbs (177 kg)407 lbs (185 kg)
GAWR - Rear783 lbs (355 kg)667 lbs (303 kg)740 lbs (336 kg)740 lbs (336 kg)740 lbs (336 kg)740 lbs (336 kg)725 lbs (328 kg)725 lbs (328 kg)695 lbs (315 kg)787 lbs (357 kg)
Fuel - Total4.5 gal (17.0 L)3.8 gal (14.4 L)4.4 gal (16.6 L)4.4 gal (16.6 L)4.6 gal (17.4 L)4.6 gal (17.4 L)4.7 gal (17.8 L)4.7 gal (17.8 L)4.4 gal (16.6 L)4.5 gal (17.0 L)
Fuel - Main4.1 gal (15.5 L)3.4 gal (13 L)4.0 gal (15.1 L)4.0 gal (15.1 L)3.9 gal (14.7 L)3.9 gal (14.7 L)3.9 gal (14.7 L)3.9 gal (14.7 L)4.0 gal (15.16 L)4.1 gal (15.1 L)
Fuel - Reserve0.4 gal (1.5 L)0.4 gal (1.5 L)0.4 (1.5 L)0.4 (1.5 L)0.7 gal (2.7 L)0.7 gal (2.7 L)0.8 gal (3.02 L)0.8 gal (3.02 L)0.4 gal (1.5 L)0.4 gal (1.5 L)
Oil Capacity3.5 qts (3.3 L)2.875 - 3 qts (2.7 - 2.8 L)2.875 - 3 qts (2.7 - 2.8 L)2.875 - 3 qts (2.7 - 2.8 L)2.875 - 3 qts (2.7 - 2.8 L)2.875 - 3 qts (2.7 - 2.8 L)3.75 qts (3.5 L)3.75 qts (3.5 L)2.875 - 3 qts (2.7 - 2.8 L)3.3 qts (3.1 L)
Frame Specs
Frame Rake34 degrees39 degrees39 degrees39 degrees39 degrees39 degrees33 degrees33 degrees39 degrees40 degrees
Tree Rake3 degrees3 degrees3 degrees3 degrees3 degrees3 degrees0 degrees0 degrees3 degrees5 degrees
Trail4.8" (121.9 mm)4.74" (120.3 mm)4.35" (110.5 mm)4.35" (110.5 mm)4.81" (122.2 mm)4.81" (122.2 mm)5.59" (142 mm)5.59" (142 mm)4.35" (110.5 mm)5.86" (148.8 mm)
Front Suspension41 mm Telescopic41 mm Telescopic41 mm Telescopic41 mm Telescopic41 mm Telescopic41 mm Telescopic41 mm Telescopic41 mm Telescopic41 mm Telescopic41 mm Telescopic Sleeved
Seat Height24.25" (616.0 mm)24.5" (622.3 mm)24.25" (616 mm)24.25" (616 mm)24.25" (616 mm)24.25" (616 mm)25.5" (647.7 mm) Spring Seat25.5" (647.7 mm) Spring Seat24.25" (616 mm)25.5" (647.7 mm)
Ground Clearance4.5" (114.3 mm)4.5" (114.3 mm)4.0" (101.6 mm)4.0" (101.6 mm)4.0" (101.6 mm)4.0" (101.6 mm)4.75" (120 mm)4.75" (120 mm)4.5" (114.3 mm)3.875" (98.4 mm)
Wheel Base74.63" (1895.6 mm)77.5" (1969 mm)82" (2083 mm)82" (2083 mm)77.5" (1968 mm)77.5" (1968 mm)73" (1857 mm)73" (1857 mm)82.5" (2096 mm)83.5" (2120.9 mm)
Total Length101.5" (2578 mm)102.5" (2604 mm)108" (2743 mm)108" (2743 mm)103" (2616 mm)103" (2616 mm)101.8" (2586 mm)101.8" (2586 mm)107" (2718 mm)112" (2844.8mm)
Front Brake4-Piston Diff Bore4-Piston Diff Bore4-Piston Diff Bore4-Piston Diff Bore4-Piston Diff Bore4-Piston Diff Bore4-Piston Diff Bore4-Piston Diff Bore4-Piston Diff Bore4-Piston Diff Bore
Rear Brake4-Piston4-Piston4-Piston4-Piston4-Piston4-Piston4-Piston4-Piston4-Piston4-Piston Drive side
Front Tire120/70-R21 62VMH90-21 56VMH90-21 56VMH90-21 56VMH120/70-21 62VMH120/70-21 62V130/60-R23 65V130/60-R23 65VMH90-21 56H130/60R23 65V
Rear Tire250/40-R18 81V250/40-R18 81V300/35-R18 87V300/35-R18 87V300/35-R18 87V300/35-R18 87V280/40-R20 89V280/40-R20 89V330/30-R17 87V220/50R20 83V
Tire Pressure
Front Wheel21" x 3.25" (533.4 mm x 82.5 mm)21" x 2.15" (533.4 mm x 54.6 mm)21" x 2.15" (533.4 mm x 54.6 mm)21" x 2.15" (533.4 mm x 54.6 mm)21" x 3.50" (533.4 mm x 88.9 mm)21" x 3.50" (533.4 mm x 88.9 mm)23" x 3.75" (584.2 mm x 95.25 mm)23" x 3.75" (584.2 mm x 95.25 mm)21" x 2.15" (533.4 mm x 54.6 mm)23" x 3.75" (584.2 mm x 95.25 mm)
Rear Wheel18" x 8.50" (457.2 mm x 215.9 mm)18" x 8.50" (457.2 mm x 215.9 mm)18" x 10.50" (457.2 mm x 266.7 mm)18" x 10.50" (457.2 mm x 266.7 mm)18" x 10.50" (457.2 mm x 266.7 mm)18" x 10.50" (457.2 mm x 266.7 mm)20" x 10.50" (508.0 mm x 266.7 mm)20" x 10.50" (508.0 mm x 266.7 mm)17" x 12.00" (431.8 mm x 304.8 mm)20" x 7.00" (508.0 mm x 177.8 mm)
EngineOHV 45 degree V-TwinOHV 45 degree V-TwinOHV 45 degree V-TwinOHV 45 degree V-TwinOHV 45 degree V-TwinOHV 45 degree V-TwinOHV 45 degree V-TwinOHV 45 degree V-TwinOHV 45 degree V-TwinOHV 56 degree X-Wedge
Displacement111 c.i. (1807 cc)117 c.i. (1917 cc)117 c.i. (1917 cc)117 c.i. (1917 cc)117 c.i. (1917 cc)117 c.i. (1917 cc)117 c.i. (1917 cc)117 c.i. (1917 cc)117 c.i. (1917 cc)121 c.i. (1976 cc)
Bore x Stroke4.125" x 4.125" (104.8 mm x 104.8 mm)4.125" x 4.375" (104.8 mm x 111.1 mm)4.125" x 4.375" (104.8 mm x 111.1 mm)4.125" x 4.375" (104.8 mm x 111.1 mm)4.125" x 4.375" (104.8 mm x 111.1 mm)4.125" x 4.375" (104.8 mm x 111.1 mm)4.125" x 4.375" (104.8 mm x 111.1 mm)4.125" x 4.375" (104.8 mm x 111.1 mm)4.125" x 4.375" (104.8 mm x 111.1 mm)4.25" x 4.25" (107.95 mm x 107.95 mm)
Compression Ratio9.7:19.6:19.6:19.6:19.6:19.6:19.6:19.6:19.6:19.9:1
Fuel SystemCLEFICarburetedCarbureted / CLEFICLEFICarbureted / CLEFICLEFICarbureted / CLEFICLEFICarburetedCLEFI
Transmission6-Speed6-Speed6-Speed6-Speed6-Speed6-Speed6-Speed6-Speed6-Speed6-Speed
Primary DriveChain - Spring CompensatedComp/Balance DriveComp/Balance DriveComp/Balance DriveComp/Balance DriveComp/Balance DriveComp/Balance DriveComp/Balance DriveChain/Balance DriveComp/Balance Drive
Final Drive1.125" (28.6 mm) Belt1.125" (28.6 mm) Belt1.125" (28.6 mm) Belt1.125" (28.6 mm) Belt1.125" (28.6 mm) Belt1.125" (28.6 mm) Belt1.125" (28.6 mm) Belt1.125" (28.6 mm) Belt1.125" (28.6 mm) Belt1.125" (28.6 mm) Belt
IgnitionElectronic Single FireElectronic Single FireElectronic Single FireElectronic Single FireElectronic Single FireElectronic Single FireElectronic Single FireElectronic Single FireElectronic Single FireElectronic Single Fire
Charging Output35 Amp35 Amp35 Amp35 Amp35 Amp35 Amp35 Amp35 Amp35 Amp35 Amp
Battery Type
Battery310 CCA/Sealed AGM310 CCA/Sealed AGM310 CCA/Sealed AGM310 CCA/Sealed AGM310 CCA/Sealed AGM310 CCA/Sealed AGM310 CCA/Sealed AGM310 CCA/Sealed AGM310 CCA/Sealed AGM310 CCA/Sealed AGM